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WordPress-Handbuch
/ listing-18-4.php
Last active
May 6, 2021 23:42
Parsing all WordPress post and page text, link all @ and # words to Instgram tags and profiles
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| function wh_add_social_links( $content ) { | |
| $content = preg_replace( '/([^a-zA-Z0-9-_&])@([0-9a-zA-Z_]+)/', "$1<a href=\"https://www.instagram.com/$2/\" target=\"_blank\">@$2</a>", $content ); | |
| $content = preg_replace( '/([^a-zA-Z0-9-_&])#([0-9a-zA-Z_]+)/', "$1<a href=\"https://www.instagram.com/explore/tags/$2/\" target=\"_blank\">#$2</a>", $content ); | |
| return $content; | |
| } | |
| add_filter( 'the_content', 'wh_add_social_links' ); | |
| add_filter( 'comment_text', 'wh_add_social_links' ); |
WordPress-Handbuch
/ listing-6-2.css
Last active
December 4, 2020 08:16
Code fragment for ribbon include example – CSS part
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| .ribbon { | |
| width: 150px; | |
| height: 150px; | |
| overflow: hidden; | |
| position: absolute; | |
| z-index:9; | |
| } | |
| .ribbon span { | |
| position: absolute; |
WordPress-Handbuch
/ listing-18-17.php
Created
April 23, 2019 06:09
WordPress 5 dropin for db-error.php, a custom error message in case of a failed database connection
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| <?php ob_start(); | |
| header('HTTP/1.1 503 Service Temporarily Unavailable'); | |
| header('Status: 503 Service Temporarily Unavailable'); | |
| header('Retry-After: 3600'); | |
| mail("info@ihredomain", "Datenbankfehler", "Schon wieder die Datenbank!", "From: Meine Website"); | |
| ?><!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>Website nicht erreichbar</title> |
WordPress-Handbuch
/ listing-18-2.php
Last active
July 30, 2020 15:41
WordPress hook to activate a basic maintenance mode showing a message for everybody but the administrator
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| function wh_maintenance_mode() { | |
| if ( !is_user_logged_in() || !current_user_can('administrator') ) { | |
| wp_die( 'Dritte Variante einer Wartungsseite', 'Wartung!', array( 'response' => '503')); | |
| } | |
| } | |
| add_action( 'get_header', 'wh_maintenance_mode' ); |
WordPress-Handbuch
/ listing-22-1.php
Last active
February 18, 2020 19:55
WordPress 5 plugin main php code of the WH Eyecatcher example project https://wordpress.org/plugins/wh-eyecatcher/
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| <?php | |
| /* | |
| Plugin Name: WH Eyecatcher | |
| Plugin URI: https://wordpress-handbuch.com/wh-eyecatcher | |
| Description: Add a floating slogan to eyery page of your website | |
| Version: 1.0.2 | |
| Author: WordPress-Handbuch | |
| Author URI: https://wordpress-handbuch.com | |
| License: GPL v2 or later | |
| Copyright 2019 Richard Eisenmenger |
WordPress-Handbuch
/ listing-19-1.php
Last active
February 18, 2020 18:12
WordPress 5 – Register new post type in an own plugin
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| <?php | |
| /** | |
| * Plugin Name: WH Custom Post Type | |
| */ | |
| function add_wh_events() { | |
| $labels = array( | |
| 'name' => 'Veranstaltungen', | |
| 'singular_name' => 'Veranstaltung', | |
| 'add_new' => 'Erstellen', | |
| 'add_new_item' => 'Neue Veranstaltung erzeugen', |
WordPress-Handbuch
/ listing-18-1.php
Created
December 14, 2018 13:23
WordPress 5 Plugin: WH_Hello_World
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| <?php | |
| /** | |
| * @package WH_Hello_World | |
| * @version 1.0.0 | |
| */ | |
| /* | |
| Plugin Name: WH Hello World | |
| Plugin URI: https://wordpress-handbuch.com | |
| Description: Testausgabe in Front- und Backend | |
| Author: Richard Eisenmenger |
WordPress-Handbuch
/ listing-10-2.php
Last active
September 4, 2019 07:53
PHP/HTML blog snippet for proper WordPress HTML meta tag integration for social network sharing
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| <?php | |
| if (is_single()) | |
| { | |
| $title = htmlspecialchars( strip_tags( get_the_title( $post->ID ) ) ); | |
| $description = htmlspecialchars( strip_tags( get_the_excerpt( $post->ID ) ) ); | |
| $thumbnail = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'full' ); | |
| $image = $thumbnail[0]; | |
| $type = 'article'; | |
| } elseif (is_page()) { | |
| $title = htmlspecialchars( strip_tags( get_the_title( $post->ID ) ) ); |
WordPress-Handbuch
/ listing-15-4.htaccess
Last active
May 19, 2019 09:36
Show all ways to get the current and absolute PHP script folder
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| AuthUserFile /AbsoluterPfadZumIhremWordPressAdminOrdner/.htpasswd | |
| AuthType Basic | |
| AuthName "Verhaeltnismaessig geheimer Zugang zur Website" | |
| Require valid-user |
WordPress-Handbuch
/ listing-15-5.php
Created
May 19, 2019 09:35
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| <?php | |
| echo 'basename(dirname(__FILE__)) = ' . basename(dirname(__FILE__)) . "<br/>"; | |
| echo '$_SERVER["PHP_SELF"] = ' . $_SERVER["PHP_SELF"] . "<br/>"; | |
| echo '$_SERVER["DOCUMENT_ROOT"] = ' . $_SERVER["DOCUMENT_ROOT"] . "<br/>"; | |
| echo 'dirname(__FILE__) = ' . dirname(__FILE__) . "<br/>"; | |
| echo 'getcwd() = ' . getcwd() . "<br/>"; | |
| echo '__FILE__ = ' . __FILE__ . "<br/>"; | |
| phpinfo(); | |
| ?> |
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